Roller tension for spinning frames



April 10, 1945. N. DICKISON ROLLER TENSION FOR SPINNING FRAME Filed March 20, 1943 rlllllllllllflll/Illl INVENTOR. N/L 5 D/ck/so/v ATTORNEX Patented Apr. '10, 1945 iJNlTED STATES PATENT OFFICE.

ROLLER TENSION FOR SPINNING FRAMES Niles Dickison, Portsmouth, Va.

Application March 20, 1943, Serial No. 479,821

1 Claim.

This invention relates to roller tension devices for spinning frame.

Tensioning devices for yarn heretofore made includes weights on the spinning frame which hang below the back guides or wooden part of the frame, and are used to put tension on the top rollers to keep them pressed hard against the steel rolls. These weights are troublesome because they gather lint and have to be cleaned often. They also cause considerable st production on the looms due to yarn breakage. Due to the use of the weights much finished cloth must be cut out as seconds because of the lint on the weights.

It is therefore an object of this invention to provide a tension device of the character described to replace the weights and thus eliminate the disadvantages resulting therefrom.

A further object of the invention is to provide a tensioning device of the character described which shall be relatively inexpensive to manufacture, easy to adjust and yet practical and eificient to a high degree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consist in the features of construction, combinations of elements, and arrangement of parts which will be exemplified in the construction hereinafter described, and of which the scope of application will be indicated in the following claim.

' In the accompanying drawing, in which is shown one of the various possible illustrative embodiments of this invention,

Fig. 1 is a side elevational view of rollers pro vided with a tensioning device embodying the invention;

with a hook 26 at its upper end, and a threaded shank 21. On shank 21 are look nuts 28 to fix member 25 to the base.

Engaging the hook 28 is a housing 39 comprising a tube 3! open at its lower end. Said tube is formed with a pair of diametrically opposed openings 32 supporting a transverse pin 33 engaged by the hook 26. Tube 3| is formed with a pair of longitudinal, diametrically opposed slots 35 through which the lever passes.

Tube 3| has a conical top 40 formed with a central opening 4|. Rotatably mounted therein and projecting down into the tube is an adjusting screw 44 for the purpose hereinafter appearing. Screw 44 is screwed into a threaded opening in a plug 45 slidable in the top of the tube.

Within the tube and above the lever is a bottom plug 46. Between plugs 45, 46 is a coil com- Fig. 2 is a side elevational view of a tensioning device embodying the invention; and

Fig. 3 is across-sectional view taken on line 3-3 of Fig. 2.

Referring vnow in detail to the drawing, l0 designates a yarn roller device forming part of a spinning frame. base or bed H supporting a plurality of parallel steel rollers I 2. Over the rollers l2 are a set of rollers I 4 mounted on a frame I5.

Means is provided to tension rollers l4 against rollers I2 to tension yarn passing between the two sets of rollers. To this end there is hinged to base II, a lever 20. Said lever has a hook 2! at one end engaging an eye 22 on the base ll. Lever 20 is connected to frame l5 by a link 23.

Base II is formed with a screw threaded opening in which is-screwed a member 25 formed The device In comprises a pression spring 41.

As screw 44 is turned clockwise spring 4! is compressed. Spring 41 presses down on the. lever to pull down on link 23 and thus tension the rollers.

Tube 3| has two circular opening 50 in which is inserted a semi-circular spring 5| to limit downward movement of the plug 46. Said stop is located above the lower ends of the slots 35.

It will thus be seen that there is provided a device in which the several objects of this invention are achieved, and which is well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention, and. as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

In combination, a base, a set of rollers thereon, a second set of rollers on the first set, a frame interconnecting the second set of rollers, a lever pivoted to the base, a link connecting said lever with said frame, a spring tensioning device pressing down on the lever to press the second set of rollers against the first set of rollers, said device comprising a tube having slots through which the lever passes, means adjustably connecting said tube to the base, a spring within the tube between the top of the tube and said lever, and adjustable means in the top of the tube to regulate the tension of said spring.

NILES DICKISO'N. 

